When working on or around brake assemblies, care must be taken to prevent
breathing asbestos dust, as many manufacturers incorporate asbestos fibers
in the production of brake linings. During routine service operations, precautions
should be taken to minimize exposure. Do not sand or grind brake linings unless
suitable local exhaust ventilation equipment is used to prevent excessive
asbestos exposure.

Wear a suitable respirator approved for asbest...

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